Most Beijing residents buy a small surgical mask to thwart choking air pollution. What if you want something that makes a statement? Artist Matt Hope created a bike with a steampunk air filter to do his daily ride.

Photos: Naihan Li
What's in the box? As we move from static, consumption-driven lifestyles to living with portability, flexibility and "less is more," it's fascinating to see how thoughtful design can bring this vital ethic to bear. We've seen

Praised by Prince Charles for their sustainable features, Beijing's traditional hutong alley neighborhoods are now the stars of a SimCity-like interactive game being showcased at Beijing Design Week. Its creators hope letting exhibit